Honda Motorcycle CBR600F F3 front turn signal bulbs measure 1034 in size, while rear turn signal bulbs measure P21W and 1073, with these specifications representing the bulb sizes used across the model line. The replacement chart covers 1995 through 1998 production years and details bulb size specifications for turn signal applications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle CBR600F F3 uses two distinct bulb standards across its front and rear turn signals: the ANSI standard, common in the US and Canada, and the ECE standard, used in Europe and worldwide.
The 1034 bulb is specified for the front turn signals on the CBR600F F3 across all four model years, 1995-1998.
The 1034 is a dual-filament bulb rated at 12V and 21/5W, fitted with a BAY15d bayonet base, and is classified as a variant of the 1157 under the ANSI standard.
A BAY15d base features two offset pins at different heights, which physically prevents incorrect single-filament bulbs from being seated in its socket, making it non-interchangeable with BA15s-based bulbs.
The rear turn signal specification for the CBR600F F3 changed between the 1995 and 1996 model years, shifting from the 1073 to the P21W bulb.
The P21W is a single-filament ECE-standard bulb rated at 12V and 21W, fitted with a BA15s bayonet base, and is specified for the rear turn signals on the 1996-1998 model years.
The 1073 is a single-filament ANSI-standard bulb rated at 12V and 13W, also fitted with a BA15s bayonet base, and is described as a lower wattage variant of the 1156.
Although the 1073 and P21W share the same BA15s base type, their wattage ratings differ at 13W and 21W respectively, meaning they are not electrically equivalent and are not interchangeable without affecting turn signal brightness and circuit load.
The dual-filament 1034 used at the front draws 21W on its primary filament and 5W on its secondary, which is a common configuration for combined stop and tail or signal functions in automotive lighting.
The rear turn signal of the Honda Motorcycle CBR600F F3 (1995) is the only position across all four model years that uses the 1073 bulb.